KAH -20CL3NE Harmonic Drive , Harmonic Gear Reducer
KAH-20CL3NE
Main Features
1. KAH series hollow shaft rotary actuator provides large-torque
and high-precision rotary actuation. With integrated design,
processing and assembly technique, it is provided with high
precision harmonic drive reducer, frame-less torque motor, hollow
shaft high resolution absolute encoder, brake and intelligent
sensor.
2. It provides high torque output and high torque density, for
example, the torque of KAH-40 rotary actuator can reach 800N·m.
The positioning precision of rotary actuator is within 30 Arc sec.
3.An internal through-hole is set to facilitate threading of wires,
gas pipe and laser beams, which simplify the system structure.
4.Dozens of product models are provided to meet diversified needs,
and the products with 220 VAC, 110VAC and 48 VAC voltages are
available.
5.High protection grade (IP67) makes the product applicable to
severe working environment.
6. It can be used by matching with KDE series EtherCAT Bus Servo
Drivers to realize ultra-low vibration control and reliable stable
operation, through which offers an integrated drive control
solution to customers.
Models of KAH series Hollow Shaft Rotary Actuators can be offered
as below: KAH-14, KAH-17, KAH-20, KAH-25, KAH-32, KAH-40.
Application field
•Industrial robot
•Humanoid robot
•Metal machine tools
•Processing machinery of printing
•Semiconductor manufacturing equipment
•Aerospace equipment
•Numerically-controlled machine tool
•Medical apparatus and instruments
Principle of harmonic drive
Harmonic gear transmission principle
The harmonic gear drive invented by an American inventor, C· W·
Musser,. usser in 1955,It is a new type of transmission,which uses
the elastic defor mation of flexible components for motion or power
transmission. It breaks through the mode of using the rigid
component to realize mechanical drive, but with a flexible
component instead,thus obtaining a series of special functions that
other transmission cannot reach. Its name comes from the
deformation process of the intermediate flexible component, which
is a symmetrical harmonic. Except that the former Soviet .Union
called this kind of transmission"Wave Transmission" or "Flexible
Gear Drive", other countries like America, England, Ger many, and
Japan all called it "Harmonic Drive’’.
Deceleration principle
The principle of har monic gear transmission deceleration is to use
the relative motion of the flexible gear, rigid gear and wave
generator (mainly the controllable elastic defor mation of the
flexible gear), to realize the motion and power transmission. The
elliptical cam in the wave generator rotates in the flexible gear,
causing the flexible gear to defor m.When the flexible gear teeth
and the rigid gear teeth at both ends of the long shaft of the
elliptical cam in the wave generator enter the engagement, the
flexible gear teeth at both ends of the shor t shaft are disengaged
from the rigid gear teeth. For the teeth between the long shaft and
the shor t shaft of the wave generator, the half meshing state that
is gradually entering into the meshing along the dif ferent par ts
of the circumference of the flexible gear and the rigid gear, is
called meshing and the half meshing state that is gradually
disengaging is called engaging-out.The continuous rotation of
elliptical cam in wave generator makes the flexible gear defor m
constantly, w hich causes the teeth at the flexible gear and rigid
gear to shift between the states of engaging-in, meshing,
engaging-out and disengagement,thus realizing motion transmission
from active wave generator to the flexible gear.
The composition of the harmonic gear assembly
Rigid gear : A rigid inter nal gear, usually 2 teeth more than a
flexible gear,usually fixed onto the case;
Flexible gear : Thin-cup metal elastic par t with gears on the
outer ring of the opening par t.It deforms with the rotation of the
wave generator and is usually connected to the output shaft;
Wave generator : Consisting of an elliptical cam and a flexible
bearing, usually connected with an input shaft. The inner ring of
the flexible bearing is fixed on the cam, and the outer ring can be
elastically shaped into an ellipse through the ball bearing.
Application field
•Industrial robot
•Humanoid robot
•Metal machine tools
•Processing machinery of printing
•Semiconductor manufacturing equipment
•Aerospace equipment
•Numerically-controlled machine tool
•Medical apparatus and instruments
KAH-XX-XX-XX
Model | Ratio | Output Torque(Nm) | Largest Allowed Torque When Start And Stop(Nm) | Average Load Largest Allowed Torque (Nm) | Sudden Largest Allowed Torque (Nm) | Largest Revol ution(r/min) | Average Revolu tion(r/min) | Min-arc(Arc Sec) | Net Weight(kg) | Design Life(Hour) |
14 | 50 | 7 | 23 | 9 | 46 | 7000 | 3000 | ≤30 | 0.55 | 10000 |
80 | 10 | 30 | 14 | 61 |
100 | 10 | 36 | 14 | 70 |
17 | 50 | 21 | 44 | 34 | 91 | 6500 | 3000 | ≤30 | 0.7 | 10000 |
80 | 29 | 56 | 35 | 113 |
100 | 31 | 70 | 51 | 143 |
20 | 50 | 33 | 73 | 44 | 127 | 5600 | 3000 | ≤30 | 0.98 | 10000 |
80 | 44 | 96 | 61 | 165 |
100 | 52 | 107 | 64 | 191 |
120 | 52 | 113 | 64 | 191 |
25 | 50 | 51 | 127 | 72 | 242 | 4800 | 3000 | ≤30 | 1.5 | 10000 |
80 | 82 | 178 | 113 | 332 |
100 | 87 | 204 | 140 | 369 |
32 | 50 | 99 | 281 | 140 | 497 | 4000 | 3000 | ≤30 | 3.15 | 10000 |
80 | 153 | 395 | 217 | 738 |
100 | 178 | 433 | 281 | 841 |